<template>
  <div class="swiper-container" ref="cur">
    <div class="swiper-wrapper">
      <div
        class="swiper-slide"
        v-for="(carousel, index) in list"
        :key="carousel.id"
      >
        <img :src="carousel.imgUrl" />
      </div>
    </div>
    <!-- 如果需要分页器 -->
    <div class="swiper-pagination"></div>

    <!-- 如果需要导航按钮 -->
    <div class="swiper-button-prev"></div>
    <div class="swiper-button-next"></div>
  </div>
</template>

<script>
import Swiper from "swiper";
export default {
  name: "Carousel",
  props: ["list"],
  watch: {
    list: {
      // list是父级传过来的,不会变化,所以检测不到,可以上来就监听一次immediate: true,
      immediate: true,
      handler() {
        //只能监听到数据已经有了,但是v-for是否遍历完还不知道,所以还是用到$nextTick()
        this.$nextTick(() => {
          var mySwiper = new Swiper(this.$refs.cur, {
            loop: true,
            pagination: { el: ".swiper-pagination", clickable: true },
            navigation: {
              nextEl: ".swiper-button-next",
              prevEl: ".swiper-button-prev",
            },
          });
        });
      },
    },
  },
};
</script>

<style>
</style>